"[But] now they have no fever and can do their normal activities", he said.
Peoples celebrate after evacuation in Chiang Rai as divers evacuated some of the 12 boys and their coach trapped at Tham Luang cave in the Mae Sai district of Chiang Rai province, northern Thailand, Tuesday, July 10, 2018.
The next rescue operation is planned for Tuesday at 10am BST (4pm Thai local time), but Mr Osatanakorn said he can not promise the remaining five would be rescued by the end of the day.
Thailand's navy SEALs say the four boys and coach rescued on Tuesday, after other rescues in the previous two days, are all safe.
They said they were waiting for a medic and three SEALs who had stayed with the boys in their dark refuge deep inside the cave complex to come out.
"Today we might have to wait longer, but it will be worth the wait", he added. They did get a treat, however: bread with chocolate spread that they'd requested.
That left two boys and their 25-year-old coach still inside the cave but authorities were confident of getting them all out by Tuesday evening via a claustrophobic network of tunnels that in some places were completely filled with water.
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Two of the boys had suspected lung infections but the four boys from the first group rescued were all walking around in hospital.
"The kids are footballers so they have high immune systems", Dr Jedsada said. Medical officials told reporters that they're healthy, fever-free, mentally fit and "seem to be in high spirits". We always knew they would be alive. Heavy rainfall and flooding near the cave prevented rescuers from reaching them for nearly 10 days. "We can see that everything is ok as they're eating well", he said.
Doctors are taking no chances with their physical recovery, quarantining the group, administering tetanus and rabies shots, and putting two of the team on antibiotics after they showed signs of pneumonia.
The boys, aged 12-16, were the first to be extracted on Sunday and Monday, while the final four and their coach spent a 17th night inside. Heavy rains in the morning cleared during the day, leaving the teams operating outside the cave in stifling heat.
Officials involved in the rescue of the soccer team from the Tham Luang cave complex have politely declined to deploy the submarine brought over by Tesla CEO Elon Musk to assist with the extraction of the kids.
Mr Narongsak said he was grateful for Mr Musk's support but the equipment was impractical for the rescue mission.